Photosynthesis occurs in cell organelles called the chloroplast.

In the light-dependent stage of photosynthesis, light energy is used to make two molecules; NADPH and ATP.

ATP and NADPH require light, therefore they are called light-dependent reactions.

The Calvin Cycle (light-independent stage) of photosynthesis is the process where ATP, NADPH, and CO2 are used to make sugars.

The thylakoid membrane contains pigments, the most common being chlorophyll.

Chlorophyll absorbs red and blue light and reflects green.

Chlorophyll is part of the two systems that convert light energy into chemical energy. These systems are called photosystems.

RuBisCo is an enzyme that fixes carbon from the atmosphere.

RuBisCo is the most important enzyme in the world because it makes life out of air.

RuBisCo is the most abundant enzyme.

Hydrogen Ions from water move through an enzyme, ATP Synthase.

ATP Synthase adds a phosphate to a molecule called ADP to make ATP.

ATP is used as an energy source for many chemical reactions in cells.

ATP = cellular energy.

Autotrophs get their energy from “self.”

Autotrophs get their energy from sunlight.

Autotrophs use light energy to synthesize organic molecules.

Heterotrophs get their energy from “eating others.”

Heterotrophs are consumers of other organisms.

Heterotrophs consume organic molecules.

Heterotrophs depend on autotrophs.

The chemical equation for photosynthesis is 6CO2 + 6H2O + light energy = C6H16O6 + 6O2

Oxygen is a byproduct of photosynthesis.

Reactants = products.